The first Ajima-Malfatti point is the common intersection of the lines connecting the
vertices and corresponding circle-circle intersections in Malfatti's
problem (Kimberling and MacDonald 1990, Kimberling 1994). This point has triangle
center function
Similarly, letting ,
, and
be the excenters of
, then the lines
,
, and
are coincident in another point called the second
Ajima-Malfatti point, which is Kimberling center
(but is at present given erroneously
in Kimberling's tabulation).
These points are sometimes simply called the Malfatti points (Kimberling 1994).